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2580938005 = 5516187601
BaseRepresentation
bin1001100111010101…
…1111110100010101
320122212111020100111
42121311133310111
520241210004010
61104034243021
7120646416412
oct23165376425
96585436314
102580938005
111104965a18
12600426471
1332192a769
141a6abd109
151018b758a
hex99d5fd15

2580938005 has 4 divisors (see below), whose sum is σ = 3097125612. Its totient is φ = 2064750400.

The previous prime is 2580937993. The next prime is 2580938029. The reversal of 2580938005 is 5008390852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1838865924 + 742072081 = 42882^2 + 27241^2 .

It is not a de Polignac number, because 2580938005 - 25 = 2580937973 is a prime.

It is a super-2 number, since 2×25809380052 = 13322481971306760050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258093796 + ... + 258093805.

It is an arithmetic number, because the mean of its divisors is an integer number (774281403).

Almost surely, 22580938005 is an apocalyptic number.

It is an amenable number.

2580938005 is a deficient number, since it is larger than the sum of its proper divisors (516187607).

2580938005 is an equidigital number, since it uses as much as digits as its factorization.

2580938005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516187606.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 2580938005 is about 50802.9330354065. The cubic root of 2580938005 is about 1371.7001651443.

The spelling of 2580938005 in words is "two billion, five hundred eighty million, nine hundred thirty-eight thousand, five".

Divisors: 1 5 516187601 2580938005